Hi Felicity, I have been in VT for one year. I too have one dominant eye and one very suppressed eye. Don't worry too much about seeing double. I can fuse at close distances, but I don't see double unless I am doing some exercises where I should be seeing double. It was a couple of months before I was ready for the Brock string. Then once I started working with it, a few more months before I got total fusion. Sometimes now I get a little frustrated and think I'm not making much progress. Then I look back at what I have accomplished in the last year. :) Also, after about 5 months my VT prescribed glasses with prisms. This helps to overcome the vertical misalignment of the eyes. I think she was waiting to make sure I could progress with the therapy before prescribing these. Good luck and hang in there!